Home / 45,100.46-67,651.91-20,134.64

Finding the Fourth Proportional to 45,100.46, 67,651.91 and 20,134.64

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Solution

The fourth proportional to 45,100.46, 67,651.91 and 20,134.64 is: 30,202.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.46 : 67,651.91 = 20,134.64 : x
  2. Step 2: Convert to fraction form
    45,100.46/67,651.91 = 20,134.64/x
  3. Step 3: Cross multiply
    45,100.46x = 67,651.91 × 20,134.64
  4. Step 4: Simplify right side
    45,100.46x = 1,362,146,997.12
  5. Step 5: Solve for x
    x = 1,362,146,997.12/45,100.46
  6. Step 6: Final answer
    x = 30,202.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.